Camco 50M - 50F Power Grip with 90 Degree Locking Adapter - 25 ft. 55575 - The Home Depot
Camco 25' 30-Amp Power Grip™ Extension Cord at Menards®
Amazon.com: Camco PowerGrip 25-Foot 50-Amp Camper/RV Extension Cord | Features a 50-Amp Standard Male Connector & a 50-Amp Locking Female Connector | Rated for 125/250 Volts/12500 Watts (55542) : Automotive
Camco PowerGrip 30-Amp Camper/RV Extension Cord | Features a Durable Heat-Resistant PVC Construction with 10-Gauge Wires and a Flexible Design | Rated for 125 Volts/3750 Watts | 25-Feet (55191) : Automotive - Amazon.com